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506079−01 02/08
Filter Reminder
The L3011C thermostat includes a filter reminder feature.
The filter reminder can be set for 1, 3, 6, or 12−month inter-
vals. The SETTINGS button, located behind the door on
the right−hand side of the thermostat is used to set the filter
reminder interval. See figure 3. Press the SETTINGS but-
ton from the HOME screen to display the Filter Reminder
Settings screen as shown in figure 11.
FILTER
0
Figure 11. Filter Reminder Settings
The default setting for the filter reminder is 0, which dis-
ables the function. Use the UP arrow while in the Filter Re-
minder Settings screen to select the desired interval be-
tween reminders. It may be necessary to press the UP
arrow several times to access the desired setting. The
HOME screen will reappear about 10 seconds after the ar-
row key has been pressed for the final time.
After the programmed interval has elapsed, the FILTER re-
minder will be displayed as shown in figure 12. After the fil-
ter has been changed, reset the filter reminder by pressing
the SETTINGS button for 4 seconds. The screen will blink
for a few moments to indicate that the timer has been reset.
ROOM
FILTER
FAN
AUTO
SYSTEM
HEAT
72
Figure 12. Display of Filter Reminder
Service Indicator
When abnormal equipment operation is detected, the
SERVICE indicator will flash on the upper-right corner of
the screen. This indicates that the equipment requires ser-
vice from a qualified service technician. The SERVICE in-
dicator is shown in figure 13.
ROOM
SERVICE
FAN
AUTO
SYSTEM
HEAT
73
Figure 13. Service Indicator Flashing